Adjustable boring and sawing machine.



No. 853,908. PATENTED MAY 14, 1907.

' 3M. SWINTEK.

ADJUSTABLE BORING AND SAWING MACHINE.

. APBLIQATIOKPILED DBO.4,1905.

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bro/853.908., PATENTED MAYl4,1907.

M". SWINTEK.

ADJUSTABLE BORING AND'SAWING MAGH-INE.

APPLICATION FILED 1120.5.1905.

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"Kw v I UNITED STATES PATENT OFFICE.

MARTIN SWINTEK, DES MOINES, IOWA, ASSIGNOR OF ONE-HALF TO GEORGE H. CARLON, OF OSKALOOSA, IOWA.

ADJUSTABLE BORING AND SAWING MACHINE.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed December 4,1905. Serial No. 290,608.

To 01% whom Wit may concern.-

Be it known'that I, MARTIN SWINTEK, a citizen of the United States of America and a resident of Des Moines, Polk county, fowa, have invented a new and useful Adjustable Boring and Sawing Machine, of which the following is a specification.

The primary object of this invention is to combine gang boring mechanism, sawing mechanism and gain-sawing or dado-making mechanism in a single apparatus.

A further object of this invention is to provide improved means for adjusting and multiplying gang boring mechanisms.

A further object of this invention is to provide an improved. construction for sawing mechanism.

A further object of this invention is to provide an improved construction for gain-sawing or dado cutting mechanism.

A further object of this invention is to provide improved means for presenting the work to the various boring and sawing mechanisms.

My invention consists in the construction, arrangement and combination of elements hereinafter set forth, pointed out in my claims and illustrated by the accompanying drawing, in which- Figure 1 is a plan of the apparatus, a portion of one shaft broken away. Fig. 2 is a front elevation of the same apparatus. Fig. 3 is a left end elevation of the machine. Fig. 4 is a vertical section of part of the machine on the indicated line 4-4 of Fig. 2. Figs. 5 and 6 are detail views of supplemental devices adapted to be detachably connected to the boring mechanism at times and provide for boring at any point in an arc. Fig. 7 is a detail view of apart of the support for a boring mechanism. 8 is a detail view illustrating the means employed for adjustably mounting the gain-saw. Fig. 9 is a detail view of a supplemental bearing or support for a shaft. Fig. 10 is a detail elevation, partly in section, showing the means em ployed to secure a gang-arm to its support.

In the construction of the machine as shown, the numerals 10, 11 designate machine heads arranged parallel with each other in vertical planes and rigidly connected at their lower ends by beams or sills 141, auxiliary machine heads 12, 13 being arranged between and parallel with the end heads and secured to said beams. A head-beam 15, formed with a longitudinal slot 16, is mounted horizontally and connected at its ends to the front faces of the upper ends of the heads 10, 11 and to the tops of the auxiliary heads 12, 13 intermediate of its ends, the longer transverse dimension of said head-beam being vertical, and ribs 1 7, 18 are formed on the rear face of the head-beam on either side of the slot therein to strengthen the same. A driving shaft 19 is mounted in bearings 20 on the lower portions of the rear faces of the heads and a fixed pulley 21. and a loose pulley 22 are mounted together on said shaft between heads 10 and 12 and adapted to be belted to a prime mover not shown. A counter-shaft 23 is mounted in bearings 24 fixed to the upper ends of the heads 10, 11 and is arranged parallel with the driving shaft. Pulleys, 26, 27 fixed to the outer ends of the driving shaft 19, are connected by belts 28, 29 to pulleys 30, 31 fixed to the outer end portions of the counter-shaft 23. Stems 32 are mounted on the head-beam 15 by means of a clamp member 33 engaging the rear face of and extending through the slot 1.6 in said head-beam and through said stem and secured therein by a nut 34., said stem bent rearward above the head-beam and carrying a bearing box 35 adapted to receive and su port the countershaft 23 intermediate of t e ends of said shaft. The stem and bearing thereon has a range of adjustment throughout the length of the slot 16 in the headbeam 15 approximately coincident with the length of the countershaft 23 fo the purpose of strengthening and maintaining the alinement of said shaft between its bearing on the heads. A gang arm 36 is provided with a head 36 formed with a central rib or boss 36 adapted to enter the slot 16 of the head-beam 15 and be secured thereto by a clamp 36 extending head toward the counter shaft 23, with which it is connected by bevel gears 39, 40, the latter adjustable longitudinally of thecountershaft. A bearing 41 is mounted adjustably on the gang arm 36, said arm formed with a longitudinal slot 36 and the bearing formed with a rib or boss 41 entering the slot. The bearing 41 is locked to the gang arm, with the rib in the slot 36 by a clamp 41 entering said slot and also bearing against the opposite face of the gang arm and formed with a stem or threaded stud 41 extending through said slot and through the bearing and secured by a nut 41 The bearing 41 also is formed with vertical journal boxes 41 and 41 adapted to receive a chuck shaft or stem 42, which is connected to the shaft 38 by bevel gears 43, 44, the latter adjustable longitudinally of said shaft. A bit-chuck 45 is mounted on the lower end portion of the .stem 42 and a bit or auger 46 may be mounted removably and replaceably therein. A shaft 47 is mounted for rotation in the head 36 and plate 37 parallel with the shaft 38 and is geared to the shaft 38 by intermeshing gears 48, 49. Another bearing, such as 41, and stem 42, gears 43, 44, chuck 45 and bit 46, or a further plurality of them, may be mounted on the gang arm 36 and shaft 47, as shown in Figs. 1, 2, and 3, the arrangement of parts preferably being such that all the bits rotate in the same direction.

In the construction just described, the bits have a range of adjustment toward or from the head-beam determined by the slot 36, and the gang of bits has a range of adjust ment along the head-beam.

In Figs. 5, 6 and 7 I show a construction providing for an orbital adjustment of a bit as follows: The journal boxes 41 41 extend above and below the bearing 41 and form journals on which a yoke 50 may be pivotally mounted. A stem42 is journaled vertically in the outer portion of the yoke 50 and is provided with a chuck 45 on its lower end and a gear 51' on its upper end. A shaft 52 is mounted for rotation in the journal boxes 41 41 and is provided with a gear 53 connected to the gear 51 by a reversing gear 54, and also with a gear 43 adapted to be driven by engagement with a gear 44, a collar 55 on the lower end of saidshaft securing it in its bearings. The yoke 50 may be swung from side to side manually and cause the bit carried thereby to occupy any desired position in the arc of its adjustment. may be caused to carry a bit chuck and bit if so desired.

The bits have no material range of adjust ment vertically and I have arranged for car rying the work to and from said bits as fol lows: Brackets 56, are mounted on and extend forward from the lower portions of the heads 10, 11 and vertical slide bearings 57 are formed on and extend forward therefrom.

shaft 62.

The shaft 52 Stems 58 are mounted for vertical reciprocation in the slide bearings 57 and a table or work-carrying frame 59 is mounted rigidly on said stems. The table 59 is formed with a central longitudinal slot 60 from top to bottom and. is braced by one or more truss-rods 61 beneath it. A shaft 62 is mounted for Iotation in bearings 63 fixed to the brackets 56 or heads 12, 13 beneath the table 59. A shaft 64 is journaled in a bearing (on an arm 65, pivoted to and depending from a cross bar 67, of the head 12, and a cross bar 66 of the head 13), and a pulley 69 on said shaft is connected by a belt 70 to a pulley 71 on the driving shaft 19. A friction gear 72 on the shaft 64 engages at times with and drives a friction gear 73 on a shaft 74 journaled in bearings on the heads 12, 13 at the rear of the A spur gear 75 on the shaft 74 meshes with a pinion 76 on the shaft 62. A pedal 77 is fulcrumed on the lower portion of the head 12 and extends forward beneath the table 59. A finger or wiper 78 is fixed to the pedal 77 and formed with a. rounded face adapted to engage the rounded end portion of the arm 65, when the pedal is depressed, and swing said. arm forward (dotted lines Fig. 4) to the end. of bringing the friction gear 72 into operative contact with the friction gear 73 and drive the shaft 62. Cranks 79 are fixed to the end portions of the shaft 6? and are connected to end. portions of the table 59 by pitmen 80, said pitmen :uljustable as to length by means of turnlnlekles 61. Thus one revolution of the shaft 62 will cause the cranks 79 and pitmen 81) to raise and lower the table 59, and work thereon, through its range of vertical movmnent, which range is at least equal to the desired penetration of the bits 46. The deg ee of penetration of the bits into work carried on the. table 59 may be determined and adjusted by blocking the work up from the table to greater or less extent in ratio to the mean distance of the table from the extremities of the bits. Thus if the table may be raised to a plane 6 inches from the points of the bits and it is desired to bore through a plank two inches thick on said table, it would be necessary to block said plank over four inches above the table, while if it is desired to bore into said plank one inch only the plank would be blocked three inches above the table.

A bearing 82 is mounted on, adjustable longitudinally of, and rises from the left end portion of the head-beam 15. The bearing 82 is bifurcated inits upper end portion and a shaft 83 is mounted for rotation therein, crosses the bifurcation thereof and extends at each end therefrom. A belt 64 connects a pulley on the shaft 83 to a pulley 35 on the driving shaft 19. A yoke 86 is pivoted at its upper end on the extremities of the shaft 83 and a saw-shaft 87 is mounted for rotation in a bifurcated outer or lower end portion thererod 95 adjustably mounted in its upper end said pin or rod extending across the yoke 86. The lower end portion of the lever 94 is curved and is adapted for engagement by the adjacent crank 79, whereby the lever is oscillated to the end of swinging the yoke 86 outward and move the saw across a stick to be out I on the table 59. The rod 95 may extend entirely across the front of the machine and connect with a duplicate of the lever 94 acted upon by a crank shown as lifting the right end of the table. The bearing 82 and pulley 86 are adjustable lengthwise of the machine to vary the position of a transverse cut of work on the table 59. A shaft 96 is mounted for rotation in bearings fixed to the heads 12, 13 above the normal plane of the table 59 and a pulley 97 on said shaft is connected by a belt 98 to a pulley 99 in the driving shaft 19. Gain saws 100, in any desired number, are fixed to and adjustable longitudinally of the shaft 96, the rims of said saws intersecting the vertical path of travel of work on the table 59.

When it is desired simply to bore or cut gains in the work and not use the saw 91, the lever or levers 94 may be removed from the machine and the table raised and lowered without affecting the pendent position of the saw bearing yoke 86.

The upward movement of the table 59 may be arrested at any point by relaxing pressure from the pedal 77, thus disengaging the friction gears 72, 73 and permitting said table to fall by gravity to its normal position of rest.

I claim as my invention chine, comprising a suitable support, driving mechanism on said support, gang boring mechanism adjustably mounted on said support and connected to said driving mechanism, sawing mechanism mounted on said support and connected to said driving mechanism, gain sawing mechanism mounted on said support and connected .to said driving mechanism, a' table mounted for vertical reciprocation toward and from and longitudinally of said boring and past the gain-sawing mechanism, and means for swinging said sawing mechanism across the path of said table.

2. In an adjustable boring and sawing machine, a driving mechanism, a boring mechanism connected thereto, gain-sawing mech anism, a table arranged for reciprocation toward and from and longitudinally of said boring mechanism and past the gain-sawing mechanism, crank mechanism carrying said table, friction-gear connections between said driving mechanism and the crank mechanism and adapted to be thrown in and out of operation, whereby said table may be raised and lowered by said driving mechanism, sawing mechanism mounted for oscillation, and means for swinging the sawing mechanism across the path of the table.

3. In an adjustable boring and sawing machine, a suitable support, a driving mechanism thereon, gang boring mechanism adjustably mounted on said support and connected to said. driving mechanism, sawing mechanism mounted on said support and connected to said driving mechanism, gain-sawing mechanism mounted on said support and connected to said driving mechanism, a table, crank mechanism adapted to raise and lower said table toward and away from and longitudinally of said boring mechanism and past the gain-sawing mechanism, and pedally-operated connecting mechanism between said driving and crank mechanisms, said sawing mechanism ada ted to carry a saw across the path of said tab e.

4. In an adjustable boring and sawing machine, a suitable support, a driving mechanism thereon, a boring mechanism connected thereto, gain-sawing mechanism, a sawing mechanism mounted for oscillation and carrying a saw, a table, crank mechanism adapted to raise and lower said table toward and away from and longitudinally of said boring mechanism and past the gain-sawing mechanism, pedally-operated friction-gear connections between said driving and crank mechanisms, and means acted upon by said crank mechanism for swinging said saw across the path of said table.

5. In an adjustable boring and sawing machine, a suitable support, driving mechanism on said support, gang boring mechanism on said support and connected to said driving 1. An adjustable boring and sawing mamechanism, gain-sawing mechanism, a table, crank mechanism for raising and lowering said table toward and away from and longitudinally of said boring mechanism and past the gain-sawing mechanism, asawing mechanism mounted for oscillation, and lever mechanism ada ted to be acted upon by said crank mec anism to swing a saw in said sawing mechanism across the path of said table.

6. In an adjustable boring and sawing machine, the combination of a gang boring mechanism, a sawing mechanism mounted for oscillation, a gain-sawing mechanism, a table mounted for vertical reciprocation toward and from and longitudinally of said boring mechanism and past the gain-sawing mechanism, crank mechanism carrying said table, a driving mechanism common to said mechanisms, and lever mechanism acted upon by the crank mechanism to move the LII sawing mechanism across the path of said table.

7. In an adjustable boring and sawing machine, the combination of a gang boring mechanism, a table mounted for vertical reciprocation toward and from and longitudinally of said boring mechanism, crank mechanism carrying said table, a sawing mechanism mounted for oscillation, and a driving Vmechanism common to said mechanisms.

8. In an adjustable boring and sawing machine, the combination of a gang boring mechanism, a table mounted for vertical reciprocation toward and from and longitudinally of said boring mechanism, crank mechanism carrying said table, a sawing mechanism mounted for oscillation, a driving mechanism common to said mechanisms, and

lever mechanism acted upon by said crank mechanism and adapted to swing said sawing mechanism across the path of the table.

9. In an adjustable boring and sawing machine, the combination of a gang boring mechanism, a gain-sawing mechanism, a table mounted for vertical reciprocation toward and from and longitudinally of said boring, mechanism and past the gain-sa\vin,g mechanism, crank mechanism carrying" said table, and a driving mechanism common to said mechanisms.

Signed by me at Des Moines, Iowa, this twenty third day of November, 1905.

MARTIN SWINTEK.

Vitnesses S. 0. SWEET, L. L. LEIBROCK. 

